The FTB-7500E from EXFO America is an advanced metro and long-haul Optical Time Domain Reflectometer (OTDR) designed to meet the rigorous demands of telecommunications testing. Its industry-leading linearity of 130.03 dB/dB ensures accurate measurements, while a remarkably short event dead zone of just 0.8 meters and an attenuation dead zone of 4 meters provide enhanced reliability in complex network environments. With the capability to accommodate up to 256,000 sampling points and a dynamic range of up to 45 dB, this OTDR enables detailed analysis and troubleshooting of fiber optic networks. Engineered for flexibility, the device allows user-defined measurement times between 5 seconds and 60 minutes, catering to various testing scenarios. Additionally, its compatibility with EXFO Connect allows for cloud-enabled automated asset management, streamlining workflows and improving operational efficiency. Whether you're engaged in splicing, testing, or locating faults within telecom infrastructure, the FTB-7500E stands out as a powerful tool for accurate, reliable fiber optic measurement.